ISO 9001 Registered Factory 12&#39

ISO 9001 Registered Factory 12&#39
Presence
LOUDSPEAKERS FOR
TODAY'S ARCHITECTURE
A-120
300 Watt Powered Subwoofer
FEATURES
» The A-120 subwoofer was designed for
exceptional performance and value. It features a
12" extra-long excursion woofer with high BL motor.
The bass reflex enclosure with flared port ensures extended
bass response and high acoustic efficiency.
» The woofer is driven with an integral 300W class A/B amplifier
utilizing the patented BASH® technology for high electrical
efficiency.
» The integral rear-mounted 300 watt amplifier includes level, phase
(continuously variable 0-180°), and crossover control to contour the
subwoofer’s output to blend with virtually all loudspeakers and room
environments.
» The integral low pass crossover network is continuously-variable from
40Hz to 120Hz and can be bypassed if it is preferable to use an
external crossover located in an outboard receiver or processor.
» The A-120’s integral amplifier incorporates a defeatable signal-sensing
circuit that automatically powers up the amplifier when a signal is detected.
» A double-insulated isolated-ground electrical supply prevents electrical
ground loops and reduces the noise floor of the entire audio system.
12" EXTRA LONG-THROW Heavy Duty Driver
ISO 9001 Registered Factory Weleome Home Ww,
OEM SYSTEMS COMPANY
(775) 355-0405 + (775) 355-0646
www. Presence loudspeakers.conm + _infoQ Presence loudspeakers.com
SPECIFICATIONS
28Hz — 300Hz System Response)
40Hz — 120Hz (Low-pass filter with bypass switch)
300 watts, with thermal and clipping limiters
Summing stereo line level (RCA x2)
LFE (RCA shared with Left input connector)
Speaker level (Stereo 5-way binding post)
Line Level — 20k ohms, Unbalanced
Speaker Level — 220 ohms
120V 60Hz AC
IEC 2-wire receptacle with integral fuse holder
3.15A 250V T3.15AL (5x20mm) style Slow Blow
~10 minutes
15-3/8"W x 17-5/16"H x 14-3/4"D,
(390W x 440H x 375D)mm (without feet)
43165 (19.5kg)
21"W x 20"H x 20"D, (533W x 508H x 508D)mm
51lbs (23.2kqg)
The A-120 is shipped with adjustable feet, (4 spiked and 4 rubber) with tool-less
knurled jam nuts. These feet can be installed in the bottom of the enclosure in
either a 3-point triangular pattern or more traditional 4-point square pattern.
The bottom of the enclosure has 5 threaded inserts arranged to accept either pattern.
FU
(4) Spiked Feet (4) Knurled Lock Nuts (4) Rubber Feet
ROHS > |
A CAUTION: For continued
compliant D CAUTION protection against risk
С US RISK OF ELECTRIC SHOCK of fire, replace only with 0 180
DO NOT OPEN same type fuse and
T3.15AL250V rating.
AZ 80
Te E eN NAS UVR UE Le Tn
fusible de rechange de 100
meme type et calbre.
Presence’ mg 0
inpu
7 N Crossover
Speaker Level Input Left/ © Frequency
Ne”
LFE
+ = = +
Bypass Variable
= i i= Right © Crossover
® conform A e
U.S. Patent 25,075,634 and
5,510,753 Patent Pending
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